__min_full_resource_pool_memory这个参数值怎么修改?

obclient(root@sys)[oceanbase]> ALTER SYSTEM SET __min_full_resource_pool_memory = ‘1G’;
ERROR 4147 (HY000): Invalid config

ALTER SYSTEM SET __min_full_resource_pool_memory = 2147483648; 后面单位要换算成字节